Arch for the fire boxes of boilers



W. J. SYOUP. ARCH FOR THE FIREBOXES OF BOILERS.

APPLICATION FILED FEB.17,1921.

1,424,948, PatentedAug. 8, 1922.

3 SHEETS-SHEET I.

[web/ax fifarwey w STO0P. x ARCH FOR THE IIIRE BOXES 0F BOILERS.

APPLICATION FILED FEB. I], l 92l.

Patented 441 8, 1422. 3 SHEETS-SHEET 2 IIIII I I I .I I I I IIII IH IPH" 1 "I" I fl "I I I I I II II I I I I I I I I KI IIIII mill-Il d "IlIrI h "\I ll fiHI flI Ifl I fl I l I I II l I IIIIIIIIIIIIIIII| IIIII g.8, 19227. S$HEET 3.-

, W. LSTOOP ARCH FOR THE FIRE BOXES 0F BOILERS.

FILED FEB. 17; I921.

Patented Au 3 SHEET s1 between the legs of adjacent Wade coursingthrough the pipes c arch facing cools the letter by abheel therefrom.This Water, with so absorbed, may be utilized in oile", being suimblyconducted thereto she 8X61.

claimed isn arch. for the fire boxes of boilers, ing an arch facingcomposed of o of parallel courses of longitudiblocks of e suitablerefractory ii, each course having the blocks provided. with parallellongitudicending loores e water pipe bf sub- "y Ushepe extendingthroughoui courses and having the opposite legs 'eof rwcived in saidbores, said pipes their outer ends'coupled together in to provide forcirculation of Weber vely through the various courses, and

1 citing: said courses. I

arch ion the lire-boxes of boilers, rising; an arch facing); composed ofa of pencils courses of longitudii; esch course having the blocks '3?provided with parallel longitudi endingbores, a water pipe of sublyUshape extending throughout .rses and having the opposite legs 1'received in said bores, the curved leg iced blocks of a suitablerefractory conneceing portion of each pipe being em- 3. An arch for thefire-boxes of boilers, I

comprising an arch-facing composed of a plurality of parallel abuttingcourses of longitudinally elinedvblocks' of refractory material, meanssuspending said courses over the fire-box, means whereby the blocks ineach course are attached together,,- each course having a pair ofparallel longitudinull y extending bores therethrough, a. Waterconducting; pipe in the bores of each course, said pipe having parallellegs connected adjacent to, but short of, the inner end of the innermostblock of the course, and haying the outer ends of said legs projectingfrom the outer end of the outermost block of the course, and meanscoupling thepipes of said courses so that water may course through saidcourses insuccession.

. ln testimony-whereof, I affix my signature in presence of usulnscribii'w witness.

WinLiATu J. srooP. Witness H E. DUNLAP.

